158 #define do_gpio_write(gp, val) \  argument
159 	pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, (gp)->addr, val)
160 #define do_gpio_read(gp) \  argument
161 	pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, (gp)->addr, 0)
162 #define tumbler_gpio_free(gp) /* NOP */  argument
164 static void write_audio_gpio(struct pmac_gpio *gp, int active)  in write_audio_gpio()  argument
166 	if (! gp->addr)  in write_audio_gpio()
168 	active = active ? gp->active_val : gp->inactive_val;  in write_audio_gpio()
169 	do_gpio_write(gp, active);  in write_audio_gpio()
170 	DBG("(I) gpio %x write %d\n", gp->addr, active);  in write_audio_gpio()
173 static int check_audio_gpio(struct pmac_gpio *gp)  in check_audio_gpio()  argument
177 	if (! gp->addr)  in check_audio_gpio()
180 	ret = do_gpio_read(gp);  in check_audio_gpio()
182 	return (ret & 0x1) == (gp->active_val & 0x1);  in check_audio_gpio()
185 static int read_audio_gpio(struct pmac_gpio *gp)  in read_audio_gpio()  argument
188 	if (! gp->addr)  in read_audio_gpio()
190 	ret = do_gpio_read(gp);  in read_audio_gpio()
192 	return ret == gp->active_state;  in read_audio_gpio()
727 	struct pmac_gpio *gp;  in tumbler_get_mute_switch()  local
733 		gp = &mix->hp_mute;	break;  in tumbler_get_mute_switch()
735 		gp = &mix->amp_mute;	break;  in tumbler_get_mute_switch()
737 		gp = &mix->line_mute;	break;  in tumbler_get_mute_switch()
739 		gp = NULL;  in tumbler_get_mute_switch()
741 	if (gp == NULL)  in tumbler_get_mute_switch()
743 	ucontrol->value.integer.value[0] = !check_audio_gpio(gp);  in tumbler_get_mute_switch()
752 	struct pmac_gpio *gp;  in tumbler_put_mute_switch()  local
763 		gp = &mix->hp_mute;	break;  in tumbler_put_mute_switch()
765 		gp = &mix->amp_mute;	break;  in tumbler_put_mute_switch()
767 		gp = &mix->line_mute;	break;  in tumbler_put_mute_switch()
769 		gp = NULL;  in tumbler_put_mute_switch()
771 	if (gp == NULL)  in tumbler_put_mute_switch()
773 	val = ! check_audio_gpio(gp);  in tumbler_put_mute_switch()
775 		write_audio_gpio(gp, ! ucontrol->value.integer.value[0]);  in tumbler_put_mute_switch()
954 static void check_mute(struct snd_pmac *chip, struct pmac_gpio *gp, int val, int do_notify,  in check_mute()  argument
957 	if (check_audio_gpio(gp) != val) {  in check_mute()
958 		write_audio_gpio(gp, val);  in check_mute()
1093 				struct pmac_gpio *gp, int is_compatible)  in tumbler_find_device()  argument
1123 	gp->addr = addr & 0x0000ffff;  in tumbler_find_device()
1127 		gp->active_state = *base;  in tumbler_find_device()
1128 		gp->active_val = (*base) ? 0x5 : 0x4;  in tumbler_find_device()
1129 		gp->inactive_val = (*base) ? 0x4 : 0x5;  in tumbler_find_device()
1132 		gp->active_state = IS_G4DA  in tumbler_find_device()
1134 		gp->active_val = 0x4;  in tumbler_find_device()
1135 		gp->inactive_val = 0x5;  in tumbler_find_device()
1144 				gp->active_val = 0xd;  in tumbler_find_device()
1145 				gp->inactive_val = 0xc;  in tumbler_find_device()
1148 				gp->active_val = 0x5;  in tumbler_find_device()
1149 				gp->inactive_val = 0x4;  in tumbler_find_device()
1155 	    device, gp->addr, gp->active_state);  in tumbler_find_device()